nfp/nfdk/dp.c

812 		 struct nfp_net_rx_ring *rx_ring, struct nfp_net_rx_buf *rxbuf,
817 	/* If we have both skb and rxbuf the replacement buffer allocation
820 	if (skb && rxbuf)
827 	if (skb && rxbuf && skb->head == rxbuf->frag)
828 		page_ref_inc(virt_to_head_page(rxbuf->frag));
829 	if (rxbuf)
830 		nfp_nfdk_rx_give_one(dp, rx_ring, rxbuf->frag, rxbuf->dma_addr);
901 		    struct nfp_net_rx_buf *rxbuf, unsigned int dma_off,
927 			nfp_nfdk_rx_drop(dp, rx_ring->r_vec, rx_ring, rxbuf,
955 	txbuf[0].val = (unsigned long)rxbuf->frag | NFDK_TX_BUF_INFO_SOP;
956 	txbuf[1].dma_addr = rxbuf->dma_addr;
959 	dma_sync_single_for_device(dp->dev, rxbuf->dma_addr + dma_off,
965 	dma_addr = rxbuf->dma_addr + dma_off;
1048 		struct nfp_net_rx_buf *rxbuf;
1073 		rxbuf =	&rx_ring->rxbufs[idx];
1107 			nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
1111 		nfp_net_dma_sync_cpu_rx(dp, rxbuf->dma_addr + meta_off,
1116 							 rxbuf->frag + meta_off,
1117 							 rxbuf->frag + pkt_off,
1120 				nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf,
1127 			void *orig_data = rxbuf->frag + pkt_off;
1132 					 rxbuf->frag + NFP_NET_RX_BUF_HEADROOM,
1149 								  rxbuf,
1163 				nfp_nfdk_rx_give_one(dp, rx_ring, rxbuf->frag,
1164 						     rxbuf->dma_addr);
1174 			nfp_app_ctrl_rx_raw(nn->app, rxbuf->frag + pkt_off,
1176 			nfp_nfdk_rx_give_one(dp, rx_ring, rxbuf->frag,
1177 					     rxbuf->dma_addr);
1186 				nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf,
1195 		skb = napi_build_skb(rxbuf->frag, true_bufsz);
1197 			nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
1202 			nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf, skb);
1206 		nfp_net_dma_unmap_rx(dp, rxbuf->dma_addr);
1484 	struct nfp_net_rx_buf *rxbuf;
1504 	rxbuf =	&rx_ring->rxbufs[idx];
1522 	nfp_net_dma_sync_cpu_rx(dp, rxbuf->dma_addr + meta_off,	data_len);
1524 	if (unlikely(!nfp_ctrl_meta_ok(nn, rxbuf->frag + meta_off, meta_len))) {
1527 		nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
1531 	skb = build_skb(rxbuf->frag, dp->fl_bufsz);
1533 		nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
1538 		nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf, skb);
1542 	nfp_net_dma_unmap_rx(dp, rxbuf->dma_addr);